Improvement in vises for wood-working



@me can,

rotinA SIMPSON,- or

oLEVELAND, oH-Io;

Letters Patent No. 97,712, dated Decanter 7, 1869.

,l iMRo'vnMnNT 1N vrsns PoR woon-WORKING.

The Sqhedle referred to in these Letters Patent and making part of' the same To all 'whom 'it may concern: l l Beit known that I, J oHN. SIMPSON, of Cleveland,

inthe county of Cuyahoga, and inthe State Vof Ohio, have invented certain -new and useful Improvements in p Vises; and dohereby declare that'fthe'following is a full,clear,` and` exactdescl'iption thereof, reference being had to the accompanying drawings, `and to tbe y `letters of reference marked thereon, making a part of this speciiication.4 t

The nature of l my invent-ion consists in inserting,

`within the bench-leg of a-carpentex"s bench, a square socket, provided on the inside with a screw-rack bar,

and, in passing through said socket, a square casing, "open ou one side, vto which casingthe movable jawof -the vise is attached, said casing and movable jaw being operated 'by means, of a screw, which has its threads cutoff on one side.

c In order to enable others skilledin the art 'to l which my inventionrappertains, to make and use the `same, Iwill now proceed to describe its construction `and operation, referring `to `the annexed drawings,

, which .represent a side view of my invention, part iu section; l t t Arepresents the bench-leg, towhich is secured the lower stationary jaw B of'the` vise.

j The'leg A is slotted,`and in' the slot is placed a. socket, O, of any suitable forni,` whiclris secured by a bolt, D, passing through lan ear, a, ou the socket, and

throughftheileg, the ear yabeing extended outward on the bottom side.,\so as to form asupport or bearing l for a casing, E, which `moves from side toside inthe socket O. t

' In the bottom or"lower side ofv the socket (lis lplaced a screw-rack bar or `vertical segment, F, ofa

'Through the casingG ispassed a screw-rod, I,`

which is provided with the usual socket and lever K,

rfor turning the same, and the lever is provided also.

with` collars, or other suitableA means, to keep it in the casing, but still allow it to turn. l

'lhe screw-threads on one side of the screw I are cut oii', so that vwhen, this side is turned against the screwrack bar E, the screw and the casing can be readily moved out or in, without the trouble of turning the screw. a

On the socket K is a notch, in which thevpawle on the jaw H fits, so as topi-event the' screw I- from unscrewing. y u

Having thus fully` described my invention,

What I claim as new, and desire to secure by Let ters Patent, is-

c, all constructed as described, and operating substantially as and for the purposes herein set forth.

In testimony that I claim-the foregoing, I have here- JOHN SIMPSON.

unto set my hand, this 13th day of September, 1869.

Witnesses:

ALEXANDER GREASE, W.4 0., MCFARLAND. 

